Oasis reservoir question?

[VACMAN]

The plastic reservoir tank in rear. It says OASIS..Has a fill line..What do I fill to line with? Water?, Antifreze?, Or somthing else?.

[RVDude]

It's called "Boiler Antifreeze". It is a poly-propylene glycol based coolant that is GRAS (Generally Regarded As Safe) that has special heat transfer stuff added to it. Camco sells it, about $20/gal. Call several local RV supplies - it isn't that easy to find locally - one of them is likely to have it. Do not use RV antifreeze (the pink stuff), it doe not have the proper thermal transfer properties.
http://www.camco.net/Menu.cfm?SupCat...CategoryId=261